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US-IALE 2018 has ended

Monday, April 9 • 5:30pm - 7:00pm
POSTER: Patterns in Hybridization Between Native and Invasive Species

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AUTHORS: Julia Needham*, Amanda Chunco – Elon University

ABSTRACT: Human activity is causing the rapid movement of species around the globe, both directly through human facilitated movement and indirectly as a consequence of climate change. In addition to direct harm to native species through predation and competitive exclusion, introduced species can also impact native species through hybridization. Here, we have examined hybridization events between native and invasive species to determine taxonomic, temporal, and geographic patterns in hybrid zone formation. Using Web of Science, we identified 54 cases of hybridization between native and invasive species published between 2011 and 2016. Preliminary results have identified clear taxonomic patterns, with the largest numbers of studies focusing on fishes, and geographic clustering of hybrid zones in the United States, Europe, and Japan. This work also reveals significant gaps in knowledge of invasive species and the natives that they affect. Specifically, updated spatial data are unavailable for many of the species included in our study and, alarmingly, 40% of those species, including two of the most studied invasives – the Mediterranean mussel Mytilus galloprovincialis and rainbow trout Oncorhynchus mykiss – were unassessed by the IUCN Red List. This work has clear implications for global impacts of invasive species through the risk of genetic introgression. This paper also uncovers gaps in hybridization research that, due to our quickly-changing landscape, must be addressed soon to ensure the success of current conservation efforts.

Monday April 9, 2018 5:30pm - 7:00pm
Monroe Room

Attendees (1)